Autonomous Recording Units

by Pat Leonard last modified 2012-07-13 08:56

The Autonomous Recording Unit (ARU) consists of:

  •  microphone
  •  amplifier, frequency filter, programmable computer
  •  software that schedules, records, and stores the data
  •  disk drive to store data

Among the crucial features of the ARU are its small size and its low power consumption. This means that an ARU can sit alone for weeks or even months, powered by D-cells or 12-volt batteries. Up to 80 gigabytes of digital recordings can be collected.

Various generations of ARUs have been used in BRP projects in marine deployments (since 1997) and more recently in terrestrial environments (since 1999).

For more information on these units and the projects for which they have been developed, select one of the categories below.